4.
Mount and secure rear bearing plate.
5.
Heat timing gear on an electric burner
or
oven to
about 350"
F
(175°C). Install key on crankshaft,
then drivegear into place. Install retaining washer
and lock ring.
CRANKCASE
If the crankcase requires replacement, a new set of
injection pump shims will be furnished with the new
crankcase. These must be used and, in addition, the
injection pump must be retimed to the engine.
6-
Check crankshaft end play. Use enough rear
bearing plate shims and gaskets
to
provide 0.010
inch
(0*254
mm)
to
0'015
inch
(0*381
mm)
end
'lay'
If
gaskets
Of
more
than
0'01
inch
steel
shim
Of
proper
thickness
and
a
thin
gasket
on each side
of
shim. This avoids excessive
gasket compression and maintains bolt torque.
BREAK-IN
PERIOD
Whenever new rings or pistons are installed or the
cylinder refinished, the engine must be run-in before
regular operation can be resumed. Run theengine for
load, and 2 to 3 hours at 2/3 load. Regular operation
can
then
be
Avoid
light
load
operation
during the following several hours for best ring
(0.381
mm)
total
thickness
are
required,
use
a
15
to 20 minutes at no load, about 30 minutes at 1/3
7.
Install
piston assemblies.
seating to prevent oil consumption.
USH
DE
THRUST
WASHER
ALIGN
OIL
HOLES
MAIN BEARING
LIP
FACING
MUST
BE
FLUSH
WITH
FIGURE
66.
MAIN BEARING INSTALLATION
53
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